How to add a property to a file system product class ?
Hi everybody, I have a file system product, it has a class with some properties, but I now need to add a new property to the class, it works ok for the new objects that get created, but the old objects doesn't have the new property added, so when I try to display it, zope gives me an error. What should I do to get the new property added to all the old objects ?. thanks a lot, Orlando Sanchez
Hi Orlando, Please don't double post and please don't post in HTML... Orlando Sanchez Hotmail wrote:
Hi everybody, I have a file system product, it has a class with some properties, but I now need to add a new property to the class, it works ok for the new objects that get created, but the old objects doesn't have the new property added, so when I try to display it, zope gives me an error. What should I do to get the new property added to all the old objects ?.
Well, there are two possibilites: 1. make your forms and edit methods take into account that the property may not exist 2. write a Script(Python) that goes through and adds the property toall existing objects that don't have it. Check out: http://www.zope.org/Members/chrisw/zopefind cheers, Chris
thanks a lot,
Orlando Sanchez
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Chris Withers -
Orlando Sanchez Hotmail